Developers use the terminal for everything from navigating files to running scripts, managing servers, and version control with Git. Suddenly, tasks that used to take forever are done in seconds, and everything just clicks.

At first, the terminal can feel pretty daunting — just a blank screen, and it seems like one wrong command could mess everything up. But once you get the basics, it’s a whole different ballgame.

What once felt overwhelming becomes one of the most efficient tools in your toolkit, and you actually start enjoying it. Once you’re comfortable, you’ll wonder how you ever coded without it.

I built this platform from scratch over the past two years, and it's 100% custom-made for one purpose only — learning the terminal. Unlike other platforms that try to cover everything, this one is all about mastering the command line.

You’ll learn by doing real, interactive exercises right in a terminal window in your browser. The platform tracks everything you do and gives you guidance along the way.

The main course focuses on teaching you the most important terminal skills fast, but there's also a bunch of extras — tutorials for popular commands, articles about terminal history and how it all works under the hood. Plus, you get downloadable cheatsheets you can save on your computer for easy reference whenever you need them.

I’m Alen Čaljkušić, and I’ve been in software development and platform engineering for over 10 years.

My career includes working with big names like Activision Blizzard, various startups, telecommunication companies, and large banks. I’m also an AWS Certified Solutions Architect - Professional and hold full Kubernetes certification.

My background covers everything from large-scale systems to the latest in cloud and container tech.